Just out of idle curiosity: What actually causes the typical white bands of noise which appear when rewinding a VHS (and which have perhaps become iconic visual shorthand for rewinding in general)?
Basically, without additional circuitry to sync the heads with the tape during cue or review (which existed on some higher-end VCRs), the tape heads in the rotating video head assembly wind up cutting across the diagonally-written tracks on the tape during operations in which the tape is moving at a different speed than for standard playback; parts where a head crosses over a track will have some video information displayed, while parts where the head passes between tracks will have snowy noise.
Here’s a great article that illustrates exactly why this happens:
Scroll down to section F for a clear description, with tiny pictures, of the phenomenon that causes the lines.
One thing I noticed about the 3/4-inch tape decks I used to work with was that they didn’t have static lines in high-speed or freeze-frame, like the VHS and S-VHS machines did. Was that because they had fancier circuitry, or is it a difference in how video information is recorded on 3/4-inch tape? Or both?